›› 2011, Vol. 24 ›› Issue (3): 47-.

• 论文 • 上一篇    下一篇



  1. (兰州交通大学 光电技术与智能教育部重点实验室,甘肃 兰州 730070)
  • 出版日期:2011-03-15 发布日期:2011-03-11
  • 作者简介:苗成伟(1983-),男,硕士。研究方向:交通信息工程及控制。
  • 基金资助:


The Realization of the Demodulation of the Frequency-shift Track Based on DSP

 MIAO Cheng-Wei, CHEN Guang-Wu, GAO Jian-Guo, WANG Li-Ping   

  1. ([Key Laboratory of Opto-Electronic Technology and Intelligent Control,Lanzhou Jiaotong University,Lanzhou 730070,China)
  • Online:2011-03-15 Published:2011-03-11



关键词: DSP;FSK;ZPW2000A


This paper proposes the FSK signal which receives and demodulates the ZPW-2000A with the dual TMS320F2812 as the core.The forepart samples the FSK signal with the internal A/D of DSP by signal conditioning.The calculation of FFT demodulates the carrier frequency and then Z-FFT calculates the low frequency,and finally through the port of DSP's SPI the two outputs are compared.If they are the same,the signal is output.This design uses a hot standby to improve the reliability of the system.The results show that the system has high frequency resolution and good real-timeness.

Key words: DSP;FSK;ZPW2000A


  • TN911.72